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Q9: For the function <span class="ql-formula"
Q10: Evaluate all six trigonometric functions of
Q10: Solve: <span class="ql-formula" data-value="x^{3}+2 x^{2}+x
Q11: Solve the system by substitution. <br>
Q17: Use the normal approximation to find
Q32: A test of <span class="ql-formula"
Q46: Solve the inequality <span class="ql-formula"
Q47: By augmented matrix, solve the following system:<br>x
Q50: The following figure is a probability
Q54: For the function f(x)